A good bourgeois couple have adopted Monneke, a country boy. Maybe they should not have as their peaceful life is turned upside down by the antics of the little rascal.
Five rather frivolous musicians seize the opportunity to perform on a cruise in the Mediterranean. Alas: they are under contract to engage a female singer - and they fear to fall in love with her, which would endanger their friendship.
Smugglers try to ship their products via Pol Knol, a trader in medical products. Due to circumstances, the package remains on Mr Knol's desk. The smugglers think that Pol has deliberately withheld it. They come to pay him a "visit."
